问题补充:
You must read the with great care to see if the drug contains PPA before it is taken.
A. instructions
B. introductions
C. explanations
D. Expressions
答案:
(答案→)A. instructions
B. introductions
C. explanations
D. Expressions
解析:名词词义辨析题。在服药之前你必须仔细阅读说明书看清药品含是否有PPA成分。A. Instructions 说明书 B. introductions 序言 C. explanations 解释 D. Expressions 表达根据语境选A